CVE-2021-3733 is a vulnerability that was discovered in January 2021 and affects certain versions of the widely used Apache Tomcat software. This vulnerability is caused by an error in the implementation of the Tomcat servlet container, which could allow an attacker to conduct a remote code execution attack. Essentially, this means that an attacker could potentially take control of a targeted system by exploiting this vulnerability.
The vulnerability was assigned a base score of 9.8 out of 10 on the Common Vulnerability Scoring System (CVSS), indicating that it is a critical vulnerability that requires urgent attention. Apache quickly released a patch for this vulnerability, but it's important for organizations using affected versions of Tomcat to update to the latest version as soon as possible to minimize the risk of exploitation.
In summary, CVE-2021-3733 is a serious vulnerability that could allow attackers to remotely execute code on a targeted system through an exploit in Apache Tomcat software. It was discovered in January 2021 and assigned a high CVSS score of 9.8 out of 10. A patch was quickly released, and organizations using affected versions of Tomcat should update to the latest version to mitigate the risk of exploitation.